Valve



Patented Apr. 12, 1927.

ENT OfFFIC E.;

Joan, J.. RYAN, or, omesso-,- rumors.

VALVE.

Application filed February 14, 1921; Serial No. 444,*719.'

This invention relatesto faucet-s and particularly to valvev con-struction JforA the-same.

' One ot' the common types ofL valves. which has heretofore beenusedv in connection. with house-hold plumbing embodies a rubber ball which is adaptedto close-the supplyopen ing in the valve. T-his ballisordinarlly operatech-bymeans of'fan eccentric mounted on ret-ary` valve stein- Thediiiiculty with this type has been that-the eccentric mechanism is particularlyliable -to wear. andbecomes inaccuratewhen so worn` and-thus the valve`Y cannotfbe completely closed; Another de tectot this type ot-fv'alveis that/'the balliisl constantly` in thewater or other liquid which passe-s through'- the valve. This is true Thuswhether or not' the valve is closed: tlreball` is subjected to the deteriorating e-liect othe liquid. andy it-sliteis e greatlyreduced.

In, the structure of this invention when the. valve is closedthe rubberba-llis not 1nth'eliquid.I andon-ly avery small part of it is touched bythe Y liquid and 1 the rest is abovei thewliquidandati-ee` from its deterioratingheiiect itl-mustb'e borne inA mind that the lvalvesis closedfby-arvthe greater ypart ot the time, and. therefore, it is only -occasionally that the rubber ball is subjected to the actionrot the liquida Another. type. bt val-ve .is `oneV .wherein a raised seat is provided and a screw plungerv is fixed on the valve stem adapted to be screwed :downuponthe valve seat. The particular defect inherent in this type of valve is that the raised valve seat is worn away both by contact with the plunger and by the action of the water passing over it. Thus when the plunger is screwed down against the valve seat it does not satisfactorily close. Therefore, in order to remove such defect it is necessary to grind the valve seat down. This is a process which calls for special tools and can be repeated only a very few times after which the entire valve structure must be replaced. It is one object of the present invention to produce a valve structure which avoids the .defects of the two valve types above mentioned. Other objects will appear from time to time throughout the specification and claims.

The invention is illustrated more or less diagrammatically in the accompanying drawings, wherein- Fig. l is a vertical section ot the valve assembly;

Fig.-V 2 isa detailed*verticalseetion on an enlarged sealeo-f the valve'.1

Like par-ts are designatedfiby liliefcharaeters througl-iout.

A is a valve housing screw threadedat one' end 'as A@ and having theinlet-2 passage- A2 and the outlet passa-ge A3; It has theV upper hollowl extensionI A14 screw; tli'rea-declV about-itsv interiorl as -at/A, and screw th-read edabout its upper exterior as at* A B isavalve stem, havingv-the opent-tive handle -B in itsupper end'fendilia-vingftliey eularged screw threadedportion- B25 at itslower end in meshwith screw threaded pertion-rt5 of the yvalve housing. lVlu-ntedforl rotation in the lowerend-ofthe enlarge#- ment B2- is-theswivelE plate G" which has'- secured in itsunder sidethe-elastic'balllorf valve closing member C 'whichma-y-be-ot" rubberor any suitable material.v Screw threadedfin. the swivel-plate C is th'eshort screw threaded rod C2 about which the-elastic ball C is :mounted C3 isanut' mounted f1 on the-rod :C2i adapted to secure -theba-li iin place.

The extension D 'on the v`rod C2 isprovided! asia step ormeansot-iiiniting theidownwardmovement of the shaft B. Then ther-shaltffk B isro'tated Eso asi-to cause=it1-tomove down* ward under action of .fthe vscrew-thread; thei ball G comeswiircontaet with: thevalve seat E :within the valve;housingy A3 With Lp-racticallyjthe f iirst contact f: the valvel closed:L and flow through it is stopped. In order, however, to prevent injury to the parts, which might result from closingthe valve to an excessive degree, the stop is'provided. In the present case it strikes the Valve housing at the point F and absolutely limits further downward motion of the valve. Other stops might be provided without departing from the spirit of the present invention. For ex ample, a stop might be provided at the upper end of the valve shaft.

I have .shown an operative invention, still it will be obvious that many changes both of form, shape, and relation oi parts may be made without departing materially from the spirit of my invention, and I wish therefore7 that my showing` be taken as in a sense diagrammatical.

While I have shown and described a rubber ball in position in the valve, it will be understood that I might use a ball made of any one of a variety of materials. For eX- ample, the ball might be made of leather or might be made ot any yielding` material.

lhere in the specification and claims the word elastic has been used, it will be understood that it is intended also to include yielding substances, such as leather and the like which possibly are not elastic in the strict sense of that Word.

The use and operation ot this invention are as follows:

The valve is adapted to be operated by means of the rotation ot the valve stem Which is accomplished by the rotation of the handle at its upper end. rlhis rotation causes the valve stem to move up or down at the will of the operator. When the valve is to be opened the stem is so rotated as to cause it to move upward. The elastic ball iS thus withdrawn from Contact with the valve seat and flow through the valve commences. lVhen it is desired to close the valve it is rotated in the opposite direction and the elastic ball contacts the valve seat. The moment this contact takes place the valve is closed and 'further flow through it is cut ott. It is not necessary tor the elastic ball to be further compressed. ln tact to do so is likely to injure it. lt is partly to prevent such injury that the stop to limit the downward movement of the valve stem has been provided. The moment the elastic hall contacts the seat its rotation stops. Further rotation ot the valve stem merely compresses the ball to a greater degree. By means of the swiveled arrangement the elastic ball is prevented from rubbing around in the valve seat and thus wear is avoided.

A certain amount ot wear is inevitable and a yielding ball will in the course ot time have to be replaced. The replacement operation in this valve is extremely simple. lt is necessary only to shut of the water, take the valve stem out of the valve, remove the nut at the bottom of it, remove the elastic ball and put a new one in place upon the end of the valve stem. This is an operation which can be carried out by anyone and calls tor no special tool, and can be done at a very small expense.

l claim:

l. In a valve, a valve seat, a stem adapted to be moved toward and away from said seat, a yielding` valve closing member mounted for rotation in the inner end of said stem and adapted to be seated upon said seat, and a positive stop to limit the seating` movement ot said stem, said stop forming a part of and adapted to move with the valve closing member.

2. ln a valve, a seat, a stem adapted to be moved toward and away from said seat, a plate swiveled in the inner end of said stem, a yieldingmember adapted to be seated on said seat in response to the inward movement ot said stem, and a positive stop to limit the seating movement of said stem, said stop carried by said swiveled plate and said yielding member removably mounted on said stop.

3. In a valve, a narrow valve seat, a stem adapted to be moved toward and away from said seat, a yielding valve member adapted to be seated upon said seat to close said valve, and a positive stop on which the valve member is mounted, said stop being rotatably mounted in the inner end of said stem, adapted to move with said stem and to contact a portion ot the interior ot' said valve thereby to limit the closing movement of the valve.

Signed at Chicago, county of Cook and State ot Illinois, this tenth day oit February, 1921.

JOHN J. RYAN. 

